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Finding the Fourth Proportional to 336,887,580.30, 505,331,370.45 and 155,489,052.30

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Solution

The fourth proportional to 336,887,580.30, 505,331,370.45 and 155,489,052.30 is: 233,233,578.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,887,580.30 : 505,331,370.45 = 155,489,052.30 : x
  2. Step 2: Convert to fraction form
    336,887,580.30/505,331,370.45 = 155,489,052.30/x
  3. Step 3: Cross multiply
    336,887,580.30x = 505,331,370.45 × 155,489,052.30
  4. Step 4: Simplify right side
    336,887,580.30x = 78,573,495,888,730,736
  5. Step 5: Solve for x
    x = 78,573,495,888,730,736/336,887,580.30
  6. Step 6: Final answer
    x = 233,233,578.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.